diff --git a/libs/ardour/route.cc b/libs/ardour/route.cc
index 9c051c2369..8546c3ce76 100644
--- a/libs/ardour/route.cc
+++ b/libs/ardour/route.cc
@@ -1070,7 +1070,7 @@ Route::add_processor_from_xml_2X (const XMLNode& node, int version)
 
 				if (prop->value() == "ladspa" || prop->value() == "Ladspa" ||
 						prop->value() == "lv2" ||
-						prop->value() == "vst" ||
+						prop->value() == "windows-vst" ||
 						prop->value() == "lxvst" ||
 						prop->value() == "audiounit") {
 
@@ -2520,7 +2520,7 @@ Route::set_processor_state (const XMLNode& node)
 
 				} else if (prop->value() == "ladspa" || prop->value() == "Ladspa" ||
 				           prop->value() == "lv2" ||
-				           prop->value() == "vst" ||
+				           prop->value() == "windows-vst" ||
 					   prop->value() == "lxvst" ||
 				           prop->value() == "audiounit") {